Study on the Attenuation Characteristics of Seismic Wave Energy Induced by Underwater Drilling and Blasting

Table 6

Energy components, total energy, and energy proportions of reconstructed signals.

Frequency band	Horizontal tangential		Horizontal radial		Vertical direction
	En (cm^2/s^2)	Pn (%)	En (cm^2/s^2)	Pn (%)	En (cm^2/s^2)	Pn (%)
a8	407.193	40.275	1.9167	1.566	9.520	6.333
d8	358.930	35.501	5.555	4.539	38.802	25.814
d7	146.421	14.482	31.778	25.964	41.292	27.471
d6	57.142	5.652	38.028	31.070	36.239	24.108
d5	36.035	3.564	31.078	25.392	22.797	15.166
d4	4.244	0.420	8.192	6.693	1.340	0.892
d3	0.788	0.0780	3.889	3.178	0.321	0.213
d2	0.176	0.0170	1.536	1.255	0.00242	0.00147
d1	0.111	0.0110	0.419	0.343	0.00251	0.00153
E (cm^2/s^2)	1011.039		122.392		150.317
Et (cm^2/s^2)	1283.748